Namespace
Varianti

std::unordered_set::insert

Da cppreference.com.

 
 
 
std :: unordered_set
Membri funzioni
Original:
Member functions
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unordered_set::unordered_set
unordered_set::~unordered_set
unordered_set::operator=
unordered_set::get_allocator
Iteratori
Original:
Iterators
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unordered_set::begin
unordered_set::cbegin
unordered_set::end
unordered_set::cend
Capacità
Original:
Capacity
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unordered_set::erase
unordered_set::size
unordered_set::max_size
Modificatori
Original:
Modifiers
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unordered_set::clear
unordered_set::insert
unordered_set::emplace
unordered_set::emplace_hint
unordered_set::erase
unordered_set::swap
Lookup
Original:
Lookup
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unordered_set::count
unordered_set::find
unordered_set::equal_range
Benna interfaccia
Original:
Bucket interface
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unordered_set::begin2
unordered_set::end2
unordered_set::bucket_count
unordered_set::max_bucket_count
unordered_set::bucket_size
unordered_set::bucket
Politica di Hash
Original:
Hash policy
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unordered_set::load_factor
unordered_set::max_load_factor
unordered_set::rehash
unordered_set::reserve
Osservatori
Original:
Observers
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unordered_set::hash_function
unordered_set::key_eq
 
std::pair<iterator,bool> insert( const value_type& value );
(1) (dal C++11)
std::pair<iterator, bool> insert( value_type&& value );
(2) (dal C++11)
iterator insert( const_iterator hint, const value_type& value );
(3) (dal C++11)
iterator insert( const_iterator hint, value_type&& value );
(4) (dal C++11)
template< class InputIt >
void insert( InputIt first, InputIt last );
(5) (dal C++11)
void insert( std::initializer_list<value_type> ilist );
(6) (dal C++11)

Inserts element(s) to the container, if the container doesn't already contain an element with equivalent key.

1-2)
Inserti value.
Original:
inserts value.
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3-4) inserts value, using hint as a non-binding suggestion to where the search should start.

5)
inserisce elementi di [first, last) gamma.
Original:
inserts elements from range [first, last).
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6)
inserisce elementi di lista di inizializzazione ilist.
Original:
inserts elements from initializer list ilist.
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If rehashing occurs due to the insertion, all iterators are invalidated. Otherwise iterators are not affected. References are not invalidated. Rehashing occurs only if the new number of elements is higher than max_load_factor()*bucket_count().

Indice

[modifica] Parametri

hint -
iteratore, usato come un suggerimento di dove inserire il contenuto
Original:
iterator, used as a suggestion as to where to insert the content
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value -
elemento di valore da inserire
Original:
element value to insert
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first, last -
intervallo di elementi da inserire
Original:
range of elements to insert
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ilist -
inizializzatore lista per inserire i valori da
Original:
initializer list to insert the values from
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Type requirements
-
InputIt must meet the requirements of InputIterator.

[modifica] Valore di ritorno

1-2) returns a pair consisting of an iterator to the inserted element (or to the element that prevented the insertion) and a bool denoting whether the insertion took place.

3-4) returns an iterator to the inserted element, or to the element that prevented the insertion.

5-6)
nessuno.
Original:
none.
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[modifica] Complessità

1-4) Average case: O(1), worst case O(size())

5-6) Average case: O(N), where N is the number of elements to insert. Worse case: O(N*size()+N)

[modifica] Vedi anche

constructs element in-place
(membro pubblico funzione) [edit]
costruisce elementi in-place con un suggerimento
Original:
constructs elements in-place using a hint
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(membro pubblico funzione) [edit]